/* =============
　　ガラスナビ
================ */

/* 上部固定ガラス */
.global-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 60px;

  display: flex;
  justify-content: center;
  align-items: center;

  backdrop-filter: blur(12px);
  background: rgba(255, 255, 255, 0.6);

  z-index: 1000;
}

/* nav配置 */
.global-header nav {
  display: flex;
  gap: 40px;
}

/* 通常リンク */
.global-header a {
  text-decoration: none;
  color: rgba(0,0,0,0.5);
  font-weight: 400;
  transition: color 0.3s ease;
}

/* 現在地 */
.global-header a.active {
  color: rgba(0,0,0,0.9);
  position: relative;
}

/* 静かな下線 */
.global-header a.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, #c9b6ff, #e8dcff);
  border-radius: 2px;
}

/* 目次クリックでぬるっと移動 */
html {
  scroll-behavior: smooth;
}

/* コンテンツがヘッダーに隠れないように */
body {
  padding-top: 60px;
}




/* =========================
   Hover / Focus
========================= */

.global-nav a:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.12);
}

.global-nav a:focus-visible {
  outline: 3px solid rgba(150, 120, 220, 0.6);
  outline-offset: 4px;
}



/* =========================
   アクティブ（scroll.js用）
========================= */

.global-nav a.active {
  background: #f4efff;
  box-shadow: 0 8px 18px rgba(90, 55, 55, 0.15);
}